Fuel Pressure Regulator Valve (N276), Checking

Fuel Pressure Regulator Valve (N276), Checking


• Follow the guidelines for a clean working environment when working on the fuel system. Refer to => [ Fuel System ] Fuel System.

• Always follow these rules before and during work.

- Remove engine cover. Refer to => [ Engine Cover ] Service and Repair.

- Remove the noise insulation from the injectors.

- Disconnect the fuel return line - 1 -.






- Seal the open return line connection with a plug - 1 -.






- Connect the return line - 2 - with a hose - 3 -.






- Start the engine and let it run at idle.

• Specified value: 100 ml (+/- 10%) in 30 seconds

If the specified value is not attained, then the fuel pressure regulator valve is faulty.



If the engine does not start, check the cranking speed.

• Specified value: Return quantity: 0 ml

If the specified value is not attained, then the fuel pressure regulator valve is faulty.